<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录界面</title>
    <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
</head>
<body>
   <script type="text/javascript" src="js/jquery-1.11.1.min.js"></script>
   <script src="bootstrap/js/bootstrap.bundle.min.js"></script>
   <script type="text/javascript" src="js/index.js"></script>
    <div class="container mt-5">
        <div class="card">
            <div class="card-body">
                <h2 class="text-center">Login</h2>
                <form id="loginForm">
                    <div class="form-group">
                        <label for="username">Username</label>
                        <input type="text" class="form-control" id="username" name="username" required>
                    </div>
                    <div class="form-group">
                        <label for="password">Password</label>
                        <input type="password" class="form-control" id="password" name="password" required>
                    </div>
                    <button type="submit" class="btn btn-primary">Login</button>
                </form>
            </div>
        </div>
    </div>
</body>
</html>